Nearly two years after commencing environmental work on the Pacific City project in Huntington Beach, California, the site is prepared for further construction. After intensive environmental work to verify the integrity of the on-site oil and water well abandonments, all necessary permits are in place to start constructing the foundation of the approximately 190,000 sq. ft. property. Terra-Petra is proud to have taken part in such a notable development project while contributing to tremendous cost savings for the client.

In order to bring incredible value to the project, Terra-Petra came to a practical remediation plan contradictory to one which may have been reached by blindly conforming to re-abandonment codes and procedures. After a careful review of all information obtained from field explorations and well documents from the DOGGR, Larry Barnes – Terra-Petra’s Senior Petroleum Geologist – determined that a minimally intrusive remediation approach would be sufficient for the site. This approach involved shortening all wells to a depth between 6 and 10 feet below grade, recapping each well head with a circular metal plate, and installing a methane mitigation vent cone at each well head. Rather than disturbing the abandoned wells and replacing all cement plugs with costly drilling expenses, this much more non-intrusive approach was deemed more than adequate for preventing any future leaks and site contamination.

In convincing the governing agencies that is safer to leave the wells relatively undisturbed and proceeding with the aforementioned action plan, Terra-Petra was able to successfully save the client millions of dollars while simultaneously reducing their risks on this sizeable development project. With the combined expertise of the construction team Terra-Petra was able to meet the expedited construction schedule. The client is now in the process of grading the site in preparation for foundation construction. Terra-Petra will be on hand to proceed with the necessary methane gas mitigation measures on the foundation of the site for the safety of future site residents.

[PHOTO: Joe Morelli, Fire Protection Analyst of the HBDF, and Terra-Petra's Larry Barnes consulting near an abandoned oil well trench.]

Terra-Petra’s construction division was recently contacted to prepare an Oil Well History Report of 20 oil wells located on an 18 acre site in Huntington Beach, California. In accordance with the requirements of the Huntington Beach Fire Department, Terra-Petra’s team performed a “sniff test” on the oil well heads, then followed up with appropriate necessary re-abandonment activities in order to stop any leakage and contamination.

The scope of work began with surveying and staking the location of all 20 oil wells and providing excavation equipment and labor to uncover 15 of the abandoned wells while making them safe for entry. Dave Lucero, Terra-Petra’s Senior Project Scientist, was responsible for managing all excavation/backfilling operations and overseeing the entirety of field activities.

Dave also monitored all soil stockpiles for V.O.C. emissions and dust control per the requirements of the South Coast Air Quality Management District's Rule 1166.1. With Dave's extensive field experience and expert project oversight all oil wells were located, excavated, and exposed for sniff testing.

Larry Barnes, Terra-Petra’s Senior Geologist, took charge of conducting the sniff testing of each of the 15 excavated oil wells, 5 vented oil wells, and monitoring for fugitive gas emissions at each well head per the requirements of Huntington Beach Fire Department City Spec. 422 and the California Division of Oil, Gas, and Geothermal Resources (DOGGR).

As a California Licensed Petroleum Geologist, Larry’s duties included documenting the wells’ history, the casing and liners of the wells, the type of cement used to complete the well abandonments, preparing well diagrams, and recording information on all oil/gas zones. With this comprehensive information Larry was able to provide the developer with an ongoing Oil Well History Report for the Huntington Beach site. His expert knowledge in the geological field and long-standing relationship with the DOGGR facilitate the process of determining the level of safety for structures to be built over or near the wells and the corresponding safety recommendations.

After a careful review of all information obtained from field explorations and well documents obtained from the DOGGR, Terra-Petra came to a practical remediation plan contradictory to one which may have been reached simply by conforming to re-abandonment codes and procedures. Rather than disturbing the abandoned wells and replacing all cement plugs with costly drilling expenses, it was determined that a much more non-intrusive approach would be more than adequate for preventing any future leaks and site contamination. This approach involved shortening all wells to a depth between 6 and 10 feet below grade, recapping each well head with a circular metal plate, and installing a methane mitigation vent cone at each well head. In convincing the governing agencies that is safer to leave the wells relatively undisturbed and proceeding with the aforementioned action plan, Terra-Petra has successfully saved the client millions of dollars on this notable development project.

With the combined expertise of the construction team Terra-Petra was able to meet the expedited construction schedule. The client is now prepared to proceed with the necessary gas mitigation measures for the safety of future site residents.

Terra-Petra is serving as the environmental engineer of record for a large retain development in Downey, California. The project is well under construction and has included the demolition of some existing buildings and mass grading for the site.

During grading activities, the contractor had uncovered several old abandoned concrete encased pipes buried in the soil. Terra-Petra was called out to analyze the concrete for asbestos content and to manage the removal of the material as needed.

Terra-Petra's Senior Project Scientist was able to mobilize to the site within 24 hours of the contractor reporting the discovery of potential ACM materials on the property. Within 48 hours, samples were collected and the results were received back from the lab stating: "the black felt/fibrous material showed negative for asbestos. The light-colored pipe encased in concrete showed positive for asbestos and will require special handling."

Terra-Petra is in the process of mobilizing its Industrial Hygienist to the site to manage the removal of the ACM per the local state and federal standards.

Historical Use of Asbestos
During World War II, use of Asbestos Containing Material (ACM) products peaked, and the shipbuilding industry utilized the mineral extensively. From the early 1900s to the 1970s, asbestos was the ideal material to use.

Why asbestos? Simple: It was cheap, durable, flexible and naturally acted as an insulating and fireproofing agent. The construction and manufacturing industries fell in love with its potential and used asbestos-containing products whenever possible.

Malignant mesothelioma, otherwise known as mesothelioma cancer, commonly develops in the lungs of people exposed to asbestos. Effective treatments are available to ease symptoms and improve your prognosis.

The cancer usually affects the thin, protective membrane surrounding the lungs, heart or abdominal cavity. Doctors diagnose an estimated 3,000 cases a year in the United States, and the majority of those are traced to job-related asbestos exposure.

Although asbestos use declined dramatically in recent decades in this country, the incidence of malignant mesothelioma remains steady. That difference can be traced to the distinct latency period linked to the cancer.

The disease can take anywhere from 20 to 50 years after exposure to asbestos before it shows obvious symptoms and an oncologist can make a definitive diagnosis.

While no cure for the disease exists and the prognosis is typically poor, researchers made significant progress in recent years in understanding the cancer and developing new treatment options and alternative therapies.

The panoramic photo belows illustrates the primary landfill liner being installed below the Showroom Building for the future Porsche Entertainment Center Test Track in Carson California. Terra-Petra was hired to perform the Construction Quality Control/Construction Quality Assurance (CQA/CQC) inspections based on our expertise in the field.

Terra-Petra is an environmental engineering firm specializing in contaminated soil and groundwater conditions. Our expertise starts with soil gas characterization, remediation, and in the design and inspection of gas mitigation systems for buildings of all types.